Not to mention, of course, several Olympus 593s on reheat...
I was talking to someone just outside the BA engineering offices at Heathrow and I could just see the end of one of the runways from which aircraft were regularly departing. When there was a really loud jet noise and I thought it must be Concorde taking off so I was quite excited. But no, it was just a BAC111, hush kits and all.